Ted McIntyre, CEO of Turbine Power Technology, talks about a turbine engine from a Chinook helicopter that is being refurbished for use in a hydraulic fracturing unit. ( Brett Coomer / Houston Chronicle )

Ted McIntyre, CEO of Turbine Power Technology, talks about a turbine engine from a Chinook helicopter that is being refurbished for use in a hydraulic fracturing unit. ( Brett Coomer / Houston Chronicle )

Cody Boudreaux (left) and Cheries Burgess, of Green Field Energy Services, adjust a pivoting gas line arm used to fuel hydraulic fracturing units, during a test at Turbine Power Technology in Franklin, La. ( Brett Coomer / Houston Chronicle ) less

Cody Boudreaux (left) and Cheries Burgess, of Green Field Energy Services, adjust a pivoting gas line arm used to fuel hydraulic fracturing units, during a test at Turbine Power Technology in Franklin, La. ( ... more